#include "ManagedBlasProvider.h"

doublereal SmartMathLibrary::Blas::Engine::ManagedBlasProvider::dzasum_(integer *n,
  doublecomplex *zx, integer *incx)
{
  /* System generated locals */
  integer i__1;
  doublereal ret_val;
  /* Local variables */
  static integer i__, ix;
  static doublereal stemp;
  //extern doublereal dcabs1_(doublecomplex *);
  /*  Purpose   
  =======   
  takes the sum of the absolute values.   
  jack dongarra, 3/11/78.   
  modified 3/93 to return if incx .le. 0.   
  modified 12/3/93, array(1) declarations changed to array(*)   
  Parameter adjustments */
  --zx;
  /* Function Body */
  ret_val = 0.;
  stemp = 0.;
  if (*n <= 0 ||  *incx <= 0)
  {
    return ret_val;
  }
  if (*incx == 1)
  {
    goto L20;
  }
  /*        code for increment not equal to 1 */
  ix = 1;
  i__1 =  *n;
  for (i__ = 1; i__ <= i__1; ++i__)
  {
    stemp += SmartMathLibrary::Blas::Engine::ManagedBlasProvider::dcabs1_(&zx[ix]);
    ix +=  *incx;
    /* L10: */
  }
  ret_val = stemp;
  return ret_val;
  /*        code for increment equal to 1 */
  L20: i__1 =  *n;
  for (i__ = 1; i__ <= i__1; ++i__)
  {
    stemp += dcabs1_(&zx[i__]);
    /* L30: */
  }
  ret_val = stemp;
  return ret_val;
} /* dzasum_ */
